Baby stroller with tray support

ABSTRACT

A baby stroller includes a front frame and a rear frame, and the front and rear frames are connected to two connection units. A tray support is connected between the connection units. One of the connection units has a folding device which has a first positioning plate connected to the front frame and a second positioning plate connected to the rear frame. The first and second positioning plates respectively have first and second teeth which are respectively engaged with a front gear and a rear gear located in the connection unit. The front and rear gears are respectively engaged with each other. By the engagement between the first and second teeth and the front and rear gears, the baby stroller is folded by one hand.

BACKGROUND OF THE INVENTION

1. Field of The Invention

The present invention relates to a baby stroller, and more particularly,to a baby stroller with a tray support and the baby stroller can befolded by one hand.

2. Brief Description of Prior Art

The conventional bay strollers each have only one specific function suchas the conventional baby stroller does not have a proper device forpositioning the trays for meals, or cannot used as car seats. Therefore,different functions of the strollers are required for a family so as tomeet different needs of the babies. For instance, the baby needs astroller that allows the baby to sleep and sit when the baby is outsideof home. A cart with a tray support device is needed at home when havingmeals. A bed is needed when sleeping at home. The different baby needsoccupy a lot of space.

The present invention intends to provide a baby stroller with a traysupport which supports the tray for meals. The baby stroller is easilyfolded by one hand.

SUMMARY OF THE INVENTION

The present invention relates to a baby stroller and comprises a frontframe and a rear frame. The front and rear frames are connected to twoconnection units. A tray support is connected between the connectionunits. One of the connection units has a folding device which has afirst positioning plate connected to the front frame and a secondpositioning plate connected to the rear frame. The first and secondpositioning plates respectively have first and second teeth which arerespectively engaged with a front gear and a rear gear located in theconnection unit. The front and rear gears are respectively engaged witheach other. The first positioning plate has a first engaging recess andthe second positioning plate has a second engaging recess. An operationmember is received in the connection unit and located beneath the firstand second positioning plates. The operation member has a rod which isengaged with the first and second engaging recesses.

By the engagement between the first and second teeth and the front andrear gears, the baby stroller is folded by one hand.

The present invention will become more obvious from the followingdescription when taken in connection with the accompanying drawingswhich show, for purposes of illustration only, a preferred embodiment inaccordance with the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view to show the baby stroller of the presentinvention;

FIG. 2 is a side view to show the baby stroller of the presentinvention;

FIG. 3 is an exploded view to show the folding device of the presentinvention;

FIG. 4 is a front cross sectional view of the folding device of thepresent invention;

FIG. 5 is the side view of the cable connected to the folding device;

FIG. 6 is the front view of the cable connected to the folding device;

FIG. 7 is a side cross sectional view of the folding device of thepresent invention;

FIG. 8 shows the tray support connected to the baby stroller of thepresent invention;

FIG. 9 shows that the baby stroller of the present invention isexpanded;

FIG. 10 shows that the safety member is unlocked, and

FIG. 11 shows that the folding device is in folded status.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to FIGS. 1 and 2, a baby stroller 1 of the present inventioncomprises a main frame 11, a folding device 2, a seat 3 and a traysupport 4.

The main frame 11 comprises a front frame 12 and a rear frame 13. Thefront and rear frames 12, 13 are connected between two connection units14. The front frame 12 and the rear frame 13 each have a link 121/131.Each of the links 121, 131 has a notch 122/132. The main frame 11 haspins 111 which are engaged with the notches 122, 132. Two wheels 112 areconnected to two sides of the main frame 11 and two wheels 133 areconnected to two sides of the rear frame 13. A handle 15 is connected tothe front frame 12.

As shown in FIGS. 3 and 4, one of the connection units 14 has thefolding device 2 which has a first positioning plate 21 connected to thefront frame 12 and a second positioning plate 22 connected to the rearframe 13. The first and second positioning plates 21, 22 are pivotablyconnected to the connection unit 14. The first positioning plate 21 hasfirst teeth 211 formed along a curved periphery thereof and the secondpositioning plate 22 has second teeth 221 formed along a curvedperiphery thereof. The connection unit 14 has a front gear 23 and a reargear 24 located therein. The front and rear gears 23, 24 arerespectively engaged with the first and second teeth 211, 221. The frontand rear gears 23, 24 are engaged with each other. The first positioningplate 21 has a first engaging recess 212 and the second positioningplate 22 has a second engaging recess 222. An operation member 25 isreceived in the connection unit 14 and located beneath the first andsecond positioning plates 21, 22. The operation member 25 has a hole 251and a resilient member 252 is located within the hole 251. Two ends ofthe resilient member 252 are biased between an inner periphery of thehole 251 and a stop member 253 fixed to the connection unit 14. A rod254 extends from the operation member 25 and is engaged with the firstand second engaging recesses 212, 222. The operation member 25 of thefolding device 2 is connected to a first end of a cable 26 and a secondend of the cable 26 is connected to a driving member 27 which is locatedoutside of the connection unit 14 and connected with the operationmember 25 as shown in FIGS. 5 and 6. As shown in FIG. 7, the connectionunit 14 has a safety member 28 which has a block 281 protruding from theconnection unit 14 and the block 281 is located corresponding to thedriving member 27. A push member 282 is pivotably connected to theconnection unit 14. The first end of the push member 282 is in contactwith the driving member 27 and a button 283 is formed on the second endof the push member 282. A spring 284 is biased between the button 283and the connection unit 14.

The seat 3 is located between the front and rear frames 12, 13, and twosides of the seat 3 each have a connection member 31. The connectionunits 14 each have a connection portion 141 and the two connectionmembers 31 are connected with the connection portions 141. The pivotableposition between the connection members 31 and the seat 3 has ratchetteeth so as to restrict the seat 3. Each of the connection members 31 ofthe seat 3 has a first engaging portion 311. A transverse bar 32 isconnected between the two connection members 31 and has two secondengaging portions 321 which are connected with the first engagingportions 311.

As shown in FIG. 8, the tray support 4 is able to replace the transverse32 of the seat 3 and has two third engaging portions 41 connected to twosides thereof. The connection members 31 of the seat 3 are connectedwith the third engaging portions 41.

As shown in FIG. 9, when the users want to use the baby stroller 1, thelinks 121, 131 are separated from the pins 111, and the baby stroller 1is then expanded by pulling the front and rear frames 12, 13 toward thefront and rear ends, the first and second positioning plates 21, 22 arepivoted along with the expansion of the front and rear frames 12, 13 asshown in FIG. 4. The first and second teeth 211, 221 on the first andsecond positioning plates 21, 22 are moved. By the engagement betweenthe first and second teeth 211, 221 and the front and rear gears 23, 24,the first and second positioning plates 21, 22 are simultaneously moved.The first and second engaging recesses 212, 222 are engaged with the rod254 of the operation member 25. The resilient member 252 in theoperation member 25 pushes the operation member 25 upward when the firstand second engaging recesses 212, 222 are engaged with the rod 254 ofthe operation member 25. Therefore, the front and rear frames 12, 13 areset at the expanded status.

The users then put the baby in the seat 3 and the baby stroller 1 can bemoved by the wheels 112, 133. The transverse bar 32 prevents the babyfrom dropping out from the seat 3. As shown in FIG. 8, when feeding thebaby, the transverse bar 32 is removed from the connection members 31 ofthe seat 3, and the third engaging members 41 of the tray support 4 areengaged with the first engaging portions 311 of the connection members31 of the seat 3. So that the tray support 4 is secured to the seat 3and the tray can be put on the tray support 4 for convenience of feedingthe baby.

When the users want to fold the baby stroller 1, as shown in FIG. 10,the button 283 on the push member 282 of the safety member 28 of theconnection unit 14, the push member 282 then pushes the driving member27 and the driving member 27 is separated from the block 281 of theconnection unit 14. The baby stroller 1 is then unlocked and the pushmember 282 is released, the spring 284 of the push member 282 pushes thepush member 282 back to its initial position.

After releasing the safety member 28 from the driving member 27, theusers can hold and lift the driving member 27 to pull the cable 26connected with the driving member 27 as shown in FIG. 11. The operationmember 25 connected to the other end of the cable 26 is then moveddownward so that the rod 254 is removed from the first and secondengaging recesses 212, 222. The users lift the driving member 27, thefront and rear frames 12, 13 are pivoted toward the center of the babystroller 1 due to their own weight. By the engagement between theengagement between the first and second teeth 211, 221 and the front andrear gears 23, 24, the first and second positioning plates 21, 22, andthe front and rear frames 12, 13 are simultaneously folded. In otherwords, the user can fold the baby stroller 1 by one hand. When the babystroller 1 is folded, the notches 122 and 132 of the links 121 and thelinks 131 are engaged with the pins 111 of the main frame 11 to set thebaby stroller 1 at the folded status.

The folding device 2 is simple and has less number of parts involved, sothat the folding device 2 is reliable. Furthermore, thanks to theengagement between the first and second teeth 211, 221 and the front andrear gears 23, 24, the front and rear frames 12, 13 are ensured to beacted simultaneously. The operation of the baby stroller 1 is stable andthe safety member 28 maintains the expanded and folded statusesreliable.

While we have shown and described the embodiment in accordance with thepresent invention, it should be clear to those skilled in the art thatfurther embodiments may be made without departing from the scope of thepresent invention.

What is claimed is:
 1. A baby stroller comprising: a front frame and arear frame, the front and rear frames connected to two connection units,one of the connection units having a folding device which has a firstpositioning plate connected to the front frame and a second positioningplate connected to the rear frame, the first and second positioningplates pivotably connected to the connection unit, the first positioningplate having first teeth and the second positioning plate having secondteeth, the connection unit having a front gear and a rear gear locatedtherein, the front and rear gears respectively engaged with the firstand second teeth, the front and rear gears being engaged with eachother, the first positioning plate having a first engaging recess andthe second positioning plate having a second engaging recess, anoperation member received in the connection unit and located beneath thefirst and second positioning plates, the operation member having a rodwhich is engaged with the first and second engaging recesses, a drivingmember located outside of the connection unit and connected with theoperation member.
 2. The baby stroller as claimed in claim 1, whereinthe operation member of the folding device has a hole and a resilientmember is located within the hole, two ends of the resilient member arebiased between an inner periphery of the hole and a stop member fixed tothe connection unit.
 3. The baby stroller as claimed in claim 1, whereinthe operation member of the folding device is connected to a first endof a cable and a second end of the cable is connected to the drivingmember.
 4. The baby stroller as claimed in claim 1, wherein the foldingdevice has a safety member which has a block protruding from theconnection unit and the block is located corresponding to the drivingmember, a push member is pivotably connected to the connection unit, afirst end of the push member is in contact with the driving member and abutton is formed on a second end of the push member, a spring is biasedbetween the button and the connection unit.
 5. The baby stroller asclaimed in claim 1 further comprising a main frame located between thefront and rear frames, two sides of the main frame being connected tothe connection units.
 6. The baby stroller as claimed in claim 5,wherein the front frame and the rear frame each have a link, each of thelinks has a notch, the main frame has pins which are engaged with thenotches.
 7. The baby stroller as claimed in claim 1 further comprising aseat located between the front and rear frames, two sides of the seateach having a connection member, the connection units each having aconnection portion, the two connection members connected with theconnection portions.
 8. The baby stroller as claimed in claim 7, whereineach of the connection members of the seat has a first engaging portion,a transverse bar is connected between the two connection members and hastwo second engaging portions which are connected with the first engagingportions.
 9. The baby stroller as claimed in claim 8 further comprisinga tray support and two third engaging portions connected to two sides ofthe tray support, the connection members of the seat connected with thethird engaging portions.
 10. The baby stroller as claimed in claim 7further comprising a tray support and two third engaging portionsconnected to two sides of the tray support, the connection members ofthe seat each having a first engaging portion, the first engagingportions connected with the third engaging portions.